What does StackOptic analyze?

StackOptic runs 18 analysis modules on any public website from a single URL. It detects 7,000+ technologies (CMS, frameworks, analytics, payments, CDN, hosting), evaluates SSL certificates and HTTP security headers with grades from A+ to F, measures Core Web Vitals (LCP, CLS, TBT, FCP), audits SEO meta tags and structured data, checks email security (SPF, DKIM, DMARC), analyzes AI & LLM readiness including bot access and llms.txt validation, extracts color palettes and typography, estimates carbon footprint, and generates permanent shareable reports.

Does it work on sites behind Cloudflare or bot protection?

Yes. StackOptic uses a real browser engine that loads pages exactly like a human visitor — executing JavaScript, rendering CSS, and handling redirects. This allows it to bypass Cloudflare, LiteSpeed, Sucuri, and other bot protection systems where traditional crawlers and HTTP-only tools fail.

What do I get on the free plan?

The free plan includes 5 analyses per day with access to all 18 modules, full scores, technology detection, and security grades. Every report is permanently accessible via a unique shareable URL — no login required to view. No credit card needed. AI-powered insights, re-analysis, PDF/JSON export, and comparison features are available on Pro ($24/mo) and Agency ($99/mo) plans.

What is AI & LLM readiness analysis?

This module evaluates how visible and citable your website is to AI search engines like ChatGPT, Perplexity, Google AI Overviews, and Claude. It audits access permissions for 8 major AI bots, validates llms.txt and llms-full.txt files, scores citation-ready content structure, and analyzes structured data (JSON-LD) for GEO readiness — helping you rank in the next generation of search.

How long does an analysis take?

Most analyses complete in under 10 seconds. StackOptic runs all 18 modules in parallel using a real browser session, so you get technology detection, security audit, performance metrics, SEO analysis, and AI readiness scoring simultaneously.

How accurate are the results?

Detection is based on real browser execution — DOM inspection, JavaScript runtime analysis, HTTP headers, and DNS records. With 7,000+ technology signatures and Lighthouse-calibrated performance scoring, StackOptic achieves high accuracy for mainstream technologies.

What security checks are performed?

The security module evaluates SSL/TLS certificates, 12+ HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy, Referrer-Policy), HTTPS enforcement, and email authentication (SPF, DKIM, DMARC). Each site receives a letter grade from A+ to F with specific remediation steps.

Do you store the websites I analyze?

StackOptic only stores publicly available information that any visitor to a website would see — HTML content, HTTP headers, DNS records, and screenshots. We do not access private data, log in to websites, or perform any intrusive testing.

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civitai.com

https://civitai.com· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

civitai.com

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.66.152.186

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

jill.ns.cloudflare.com.zod.ns.cloudflare.com.

Performance

Page Speed

12.4 MB

250 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Next.js

Styling

Tailwind CSS

CMS

Paddle

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Progressive Web App

Web Manifest

Technology Stack

8 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Advertising

Google Ads Google AdSense

Meta Frameworks

CSS Frameworks

Fonts

CDN

SEO Analysis

C64/100

civitai.comcivitai.com

Civitai | Discover and Create AI Art

Explore thousands of free Stable Diffusion & Flux models, create and share AI-generated art, and join the world's largest community of generative AI creators.

Title Length36 chars

Recommended: 50-60 chars

Description Length158 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

34 rules

Sitemap reference found

Sponsored

Security Score

41%Poor

Interactive

HTTPS

WAF

81d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

08.02.2026

Valid Until

09.05.2026

Subject Alternative Names (2)

civitai.comimagecache.civitai.com

SHA-256 Fingerprint

02:E7:F8:7E:6D:5C:47:A2:6B:C9:13:33:8D:D5:DE:2E:33:BA:3B:E3...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🔴 No Cache(private, no-cache, no-store, max-age=0, must-revalidate)

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9cefb664dc59755e-FRA

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

alt4.aspmx.l.google.com

aspmx.l.google.com

alt2.aspmx.l.google.com

alt3.aspmx.l.google.com

+1 more

Domain Information

civitai.com

Domain Age

3y 3m

Created

03.11.2022

Expires

03.11.2026

Last Updated

04.10.2025

Registrar

Cloudflare, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

-apple-system

88/100

Readability

/30

40/40

16px · LH 1.55

Hierarchy

/20

18/25

2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

-apple-system

Sans32px

Body Font

-apple-system

Sans16px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

32px

18px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.55 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ Consistent design: Single font family with weight variations is a modern best practice.

✅ Protected text on images: Using gradient for readability.

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(19)static.anonymised.io(1)

Sponsored

Last analyzed: 16 Feb 2026 at 20:15

Historical Analysis & Change Tracking